Massive updates

Having finally found a good text to speech program, I am now again able to update and upload the audio chapters. I myself am often too busy to read most of the time and ended up listening to almost any book via an audio file.

Also, chapter's 1, 4 and 5 have been updated in terms of polish.

https://www.youtube.com/channel/UCY03qmqYEYQDRTK83fMHPMg

Audio videos will be removed and replaced with more updated versions.